| Acronym | Meaning |
| PR | Purchase Request |
| POM | Printer OutPut Microfilm |
| ETLOW | External Tank Lift-Off Weight |
| FF | Free Flight |
| TRN | Trunnion |
| FCS | Federal Communications System |
| SFTA | Structural Fatigue Test Article |
| EPA | Environmental Protection Agency |
| CRDP | Computer Resources Development Plan |
| SV | Shuttle Vehicle |